Javascript Hexadecimal Calculator
A program that carries out the addition of two Hexadecimal numbers and will have a menu that presents the user with two choices:
1. prompt the user for two hexadecimal values and perform the necessary validation and
conversion in order to display the result of their addition.
2. Quit option will display a goodbye message and end the program
This was originally a college project that had to fallow a strict brief with regards to coding standards and formatting. Once it was finished I decided to adapt the code and play about with it myself, splitting out the JavaScript from the HTML file into a separate, external stylesheet and add some styling with CSS, as well as updating the Javascript to ES6.